[Event "2022 WA Open Championship"] [Site "https://lichess.org/OvVTB2tJ"] [Date "2022.5.30"] [Round "5"] [White "Robert Allen"] [Black "Harrison Keyser"] [Result "0-1"] [WhiteElo "1700"] [BlackElo "1599"] [Variant "Standard"] [TimeControl "7200+10"] [ECO "A57"] [Opening "Benko Gambit: Zaitsev System"] [Termination "Unknown"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 c5?! { (0.20 → 0.78) Inaccuracy. e6 was best. } (2... e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3) 3. d5 b5 4. cxb5 a6 5. Nc3 { A57 Benko Gambit: Zaitsev System } axb5 6. Nxb5 Ba6 7. Nc3 g6 8. g3 Bg7 9. Bg2 d6 10. e4? { (0.75 → -0.80) Mistake. Nf3 was best. } (10. Nf3 Nbd7) 10... Nbd7 11. Nge2 O-O 12. O-O Qa5 13. Re1?! { (-0.60 → -1.27) Inaccuracy. Qc2 was best. } (13. Qc2 Rfb8) 13... Rfb8?! { (-1.27 → -0.56) Inaccuracy. Ne5 was best. } (13... Ne5 14. Qc2 Nd3 15. Rd1 Nxc1 16. Raxc1 Nd7 17. Bh3 Ne5 18. b3 Rfb8 19. Bf1 Rb4 20. Kg2) 14. f4 c4 15. Bf3 Nc5 16. Nd4 Nd3 17. Re2?? { (-0.23 → -3.55) Blunder. Nc6 was best. } (17. Nc6 Qb6+ 18. Re3 Re8 19. a4 Nd7 20. a5 Qc7 21. Bd2 Nxb2 22. Qc2 Nd3 23. Rb1 Rab8) 17... Nxd5 18. exd5?! { (-3.60 → -4.62) Inaccuracy. Nxd5 was best. } (18. Nxd5 Bxd4+) 18... Bxd4+ 19. Kg2 Ra7 20. Qc2? { (-4.00 → -6.94) Mistake. Ne4 was best. } (20. Ne4) 20... Bc8?! { (-6.94 → -4.58) Inaccuracy. Rab7 was best. } (20... Rab7 21. Qd1 Bg7 22. Rc2 Nxb2 23. Qe1 Nd3 24. Qd2 Nb4 25. Rb2 Nxd5 26. Rxb7 Bxb7 27. Nxd5) 21. Be4? { (-4.58 → -7.87) Mistake. Qd2 was best. } (21. Qd2 Rab7) 21... Bg4 22. Bxd3 cxd3 23. Qxd3 Bxc3 24. bxc3 Bxe2 25. Qxe2 Qxc3 { Black wins. } 0-1